Very Computer

I have been trying to back up my entire system to an
external 2.0 usb iomega 40 GB drive. I tried using their
backup software and windows xp pro's backup program.
Process begins, then slows to a stop after transfering
about 4 GB. (I have 12 GB to transfer)
A message will come up with either program:
[windows was unable to save all the data for the file
E:/filename. The data has been lost. The error may be
caused by a failure of your computer hardware or network
connection. Please try to save this file elsewhere.]
In fact, trying to copy any large file to the iomega on
E:/ results in an error message. Really stumped. Any help
or experience would be greatly appreciated.
Bruce

If the iomega drive is formatted as FAT32, yoiu've hit the 4GB max file size
limitation. Format the external drive to NTFS and all will copy